Ceria-yttria-stabilized zirconia composite ceramic systems for applications as low-temperature electrolytes

Journal Article · Sun Nov 30 23:00:00 EST 1997 · Journal of the American Ceramic Society

DOI:https://doi.org/10.1111/j.1151-2916.1997.tb03247.x· OSTI ID:605763

Tompsett, G A; Sammes, N M ^[1]; Yamamoto, Osamu ^[2]

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1. Univ. of Waikato, Hamilton (New Zealand). Dept. of Technology
2. Mie Univ., Tsu, Mie (Japan). Dept. of Chemistry

Ceramic samples of Ce{sub 1{minus}x}Gd{sub x}O{sub 2{minus}y} and yttria-stabilized zirconia (YSZ) were prepared using solid-state methods. Polished faces of disks of these materials were held in intimate contact in a reaction cell at temperatures ranging from 1,000 to 1,300 C for durations up to 72 h. XRD, SEM, and microprobe Raman techniques were used to analyze the resulting reactions and ion diffusion. No reaction was observed at 1,000 C after 72 h between the 10-mol%- and 20-mol%-Gd-doped CeO{sub 2} and the YSZ. However, at 1,300 C, a mixing region 25 {micro}m wide occurred, resulting in a cubic phase, where Zr{sup 4+} ions diffused into the CeO{sub 2}.

• Sponsoring Organization: USDOE
• OSTI ID: 605763
• Journal Information: Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 12 Vol. 80; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
36 MATERIALS SCIENCE
CERIUM OXIDES
COMPOSITE MATERIALS
GADOLINIUM OXIDES
HEAT TREATMENTS
PHASE STUDIES
SOLID ELECTROLYTE FUEL CELLS
YTTRIUM OXIDES
ZIRCONIUM OXIDES